Audio Signal Generator
Tone and Noise Test Utility
免費Offers In-App Purchases
1.8.0for iPhone, iPod touch
8.5
80 Ratings
Media Punk Studios
Developer
13.7 MB
Size
2019年12月03日
Update Date
Utilities
Category
4+
Age Rating
Age Rating
Audio Signal Generator 螢幕截圖
About Audio Signal Generator
Signal Generator is an app that produces audio test tones. The basic app produces sine waves, and it can be extended and customized (via in-app purchases) to produce white noise, pink noise, frequency sweeps, and (on iPhone 4 and better) square waves, sawtooth waves, and triangle waves.
• Free Tone Generator. The app includes a free sine wave generator that generates signals from 20 Hz to 20 kHz, with a 48 kHz sample rate, 16-bit samples, and 96 dB of dynamic range. Frequency control via logarithmic knob or keyboard input.
• Pro Tone Generator. (Optional in-app purchase). Extends the frequency range down to 1 Hz, and adds stereo control and buttons to increment the frequency in steps. Anti-aliased square waves, sawtooth waves, and triangle waves are generated with aliasing kept to -54 dB or less.
• Noise Generator. (Optional in-app purchase). Produces white noise, pink noise, and brown noise. Pink noise falls off at 3 dB per octave (±1 dB). Brown noise falls off at 6 dB per octave. Option for stereo uncorrelated noise, or mono correlated noise.
• Frequency Sweeps. (Optional in-app purchase). Adjustable start and stop frequencies. Linear or logarithmic sine wave frequency sweeps. Single shot sweeps, repeating upward sweeps, and upward/downward sweeps.
This app can be used to:
• Test Speakers and Headphones
• Balance your Home Theater System
• Tune Your Car Audio System
• Mask Environmental Noise
• Burn In Headphones
• Tune Musical Instruments
• Free Tone Generator. The app includes a free sine wave generator that generates signals from 20 Hz to 20 kHz, with a 48 kHz sample rate, 16-bit samples, and 96 dB of dynamic range. Frequency control via logarithmic knob or keyboard input.
• Pro Tone Generator. (Optional in-app purchase). Extends the frequency range down to 1 Hz, and adds stereo control and buttons to increment the frequency in steps. Anti-aliased square waves, sawtooth waves, and triangle waves are generated with aliasing kept to -54 dB or less.
• Noise Generator. (Optional in-app purchase). Produces white noise, pink noise, and brown noise. Pink noise falls off at 3 dB per octave (±1 dB). Brown noise falls off at 6 dB per octave. Option for stereo uncorrelated noise, or mono correlated noise.
• Frequency Sweeps. (Optional in-app purchase). Adjustable start and stop frequencies. Linear or logarithmic sine wave frequency sweeps. Single shot sweeps, repeating upward sweeps, and upward/downward sweeps.
This app can be used to:
• Test Speakers and Headphones
• Balance your Home Theater System
• Tune Your Car Audio System
• Mask Environmental Noise
• Burn In Headphones
• Tune Musical Instruments
Show More
最新版本1.8.0更新日誌
Last updated on 2019年12月03日
歷史版本
Play/pause function is independent of gain settings.
Frequency sweep time extended from 0.2 to 60 seconds.
Noise source can be set to correlated (mono) or uncorrelated (stereo).
Frequency range boundaries conform to ISO frequencies.
Frequency sweep time extended from 0.2 to 60 seconds.
Noise source can be set to correlated (mono) or uncorrelated (stereo).
Frequency range boundaries conform to ISO frequencies.
Show More
Version History
1.8.0
2019年12月03日
Play/pause function is independent of gain settings.
Frequency sweep time extended from 0.2 to 60 seconds.
Noise source can be set to correlated (mono) or uncorrelated (stereo).
Frequency range boundaries conform to ISO frequencies.
Frequency sweep time extended from 0.2 to 60 seconds.
Noise source can be set to correlated (mono) or uncorrelated (stereo).
Frequency range boundaries conform to ISO frequencies.
1.7.3
2015年07月08日
Fixed a crash that would occur during start up under certain conditions. Fixed the sweep mode button forgetting its last state.
1.7.2
2015年01月24日
Fix for a UI issue. (A number of buttons performed the wrong function. Thanks for the feedback!)
1.7.1
2015年01月11日
Slower frequency sweeps. Up to 32 seconds.
1.7.0
2014年12月16日
Extended the frequency range to include infrasonic frequencies as low as 1 Hz for the Tone Generator, and 2 Hz for the frequency sweep. Frequency sweeps now include an up/down mode and a real-time frequency display. Also includes other various improvements. Updated for iOS 8.
1.6.0
2014年01月07日
Square, sawtooth, and triangle waves are available in the pro tone generator (on iPhone 4 and up), with aliased harmonics kept at least 54 dB below the fundamental. Updated for iOS 7.
1.5.0
2013年10月03日
left/right output control
half-seconds sweeps
addressed issue with distortion in brown noise and in high-volume output
verified second harmonic of a 5 kHz tone is 92 dB below fundamental
half-seconds sweeps
addressed issue with distortion in brown noise and in high-volume output
verified second harmonic of a 5 kHz tone is 92 dB below fundamental
1.4.0
2013年06月21日
Looping frequency sweeps and real-time control of sweep parameters. Buttons to increment tone generator frequency by a number of semitones, cents, or hertz. Brown noise. iPhone 5 display optimization.
1.3.2
2013年02月14日
Fix for bug where audio was broken after returning from another app.
1.3.1
2013年01月21日
Addressed issues with silent audio, in-app purchases, and canceling text entry.
1.3.0
2012年11月06日
Pink noise. Logarithmic frequency sweeps. App remembers knob positions between sessions.
1.2.0
2012年10月29日
• Frequency sweep generator (with in-app purchase)
• Able to remove ads (with in-app purchase)
• Fixed bug when jumping between frequency and gain text fields.
• Able to remove ads (with in-app purchase)
• Fixed bug when jumping between frequency and gain text fields.
1.1.0
2012年10月05日
Now includes the option to add on a white noise generator (paid upgrade).
1.0.0
2012年08月01日
Audio Signal Generator FAQ
點擊此處瞭解如何在受限國家或地區下載Audio Signal Generator。
以下為Audio Signal Generator的最低配置要求。
iPhone
須使用 iOS 11.0 或以上版本。
iPod touch
須使用 iOS 11.0 或以上版本。
Audio Signal Generator支持英文
Audio Signal Generator包含應用內購買。 以下為Audio Signal Generator應用內購買價格清單。
Tone Generator Pro
HK$ 22.00
Sweep Generator
HK$ 22.00
Noise Generator
HK$ 22.00
